Honestly i believe spica was an unlucky group who lost the chance of becoming something big in the kpop industry. They were very talented however when they collaborated with lee Hyori everything went kind of downhill. I'm not blaming everything on Lee Hyori because one other reason why spica failed was because their company was very poor at scheduling and informing fans on events and comeback.
They were also on hiatus for almost 3 YEARS!!!! this affected their popularity greatly.
